If they’re really keen you’re aware you’re their gender of choice – and/or that you display any other physical characteristics they really like – you might be in there.
In this day and age it doesn’t matter if it’s texting or Whats App or Facebook or whatever – if somebody goes out of their way to maintain a conversation with you and a general low-key presence in your life, that’s a positive sign. We’re all so busy and so besieged with jobs and messages that who we choose to communicate with regularly is generally a fairly reliable (although definitely not infallible! If you’re on that list for somebody new or somebody who maintains an edge of flirtatious or engaging curiosity, that’s a significant thing.
Pansexual means that someone is attracted to all genders and sexes.
This can include males, females, trans folks, genderqueer folks, or any other means of gender presentation.
If I’m utterly absorbed in one person, it’s probably a sign of sexual interest – or at least the kind of Right Yes You Are A Person I Want In My Life Now sense of security and attraction that often blurs with sexual attraction in my sapio-sexual consciousness.
Obviously, there’s a disjunct between this and often prompted by how well I know the person in question.
The most effective way of navigating this with someone you’re into is probably to ask.